Nurafni Lubis, Asister Fernando Siagian, Nancy Angelia Purba. PENGARUH MODEL PROBLEM BASED LEARNING (PBL) BERBASIS MEDIA WORDWALL TERHADAP KEMAMPUAN BERPIKIR KRITIS IPAS SISWA KELAS IV SD NEGERI 091496 PEMATANG TANAH JAWA. PNJ [Internet]. 2025 Oct. 31 [cited 2026 Apr. 20];3(4):71-82. Available from: https://jurnal.migascentral.com/index.php/pnj/article/view/380